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Theory
Tests
Judge the wind speed from a visual description of the sea
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"High waves whose crests sometimes roll over. Dense foam is blown along wind direction. Large amounts of airborne spray may begin to reduce visibility" best describes the sea conditions for which beaufort wind scale number?
"Ripples without crests" best describes the sea conditions for which beaufort wind scale number?
"Long waves begin to form. White foam crests are very frequent. Some airborne spray is present" best describes the sea conditions for which beaufort wind scale number?